Release for the automatic brakes of winding drums



June 19, 1.928.

R. H. BEAUMONT RELEASE FOR THE 'AUTOMATIC BRAKES OF WINDING DRUMS Filed Feb. 28, 1927 Patented `lune 19', `1928.,r

UNIIEDJ-STATES v l 1,674,566 PATENI OFFICE.

Roanne H. BEAUMONT, oFVNAnNoR, PENNsYLvANIA, AssIGNon Ton. vII.BEAUMoNfr COMPANY, orl PIIIIAfiInEIiPHm,v PENNSYLVANIA,` A oonPonATIoNoF PENNSYL- VANIA.l

, nnLEAsEron THE AUTOMATIC BRANI-:s OEWINDING DRUMS.

Appneatidn 1aed February 2s, y1927. serialN. 171,461.

In the operation of`winding drums arranged to haul an object in two directions, as a drag scraperbucket back `and forth, by means of linesor ropes attached to the ob-l ject and wound one of them onto one drum and the other of them yonto another drum, it is customary to provide automatic brakes operative on the drum which is playing out cable so as to provide tension against which the other drum works, and the purpose of this is to keep the object in a straight path and to avoidwhipping of the lines. f

The principal objects of the presentinvention are,`first, to permit such drums to be overhauled Vand rope played out, as in drag scraper work, whenever the total length of lines or ropes out in the storage fieldhasv to be changed to accommodate different positions of the scraper bucket; and second, to provide simple, reliable and efficient mechanism operable by hand for releasing the f 5 when the parts are normalrposition,

automatic brakes of winding drums.

Other objects of'V the invention will appear from the following description.

The invention comprises the improvements to be presently described and finally claimed. l

In the following description reference will be made to the accompanying drawing forming part hereof and in which Figure 1 is an elevational view partlyv in section illustrating a release for the auto-` matic brakes of winding drums embodying features of the invention.

Fig. 2 is a View drawn to anenlarged scale and illustrating features of the invention, and

Fig. 3 is a top or plan view'of Fig. 2 with the brake band and drum omitted.

In the drawing '1 is brake band which may be fitted with a lining asl usual andv which is automatically effective in one di- 'rection usually playing out direction, as indicated by the arrow in Fig. 1. The mechanism, generally indicated at 2, is a. means for accomplishing that result and since it forms no part of the present invention 'it'- need not be further described. kThe brake band is split at 3. 4 and 5 generally indicate a pair of brackets of which one is attached to one end of the band and of which the other is attached to the other end of the band. 6 generally is a lever end. pivotally p fulcrumed in one ofthe brackets as by the pins 7 and it is provided with a socket for the reception of a hand` bar. `There is a sleeve nut 8 pivoted to the bracket 4. lAs shown the sleeve'nut 8 is mounted in a block 9 pivoted 'to the bracket 4 by the pins 10. v

11 is a1 rod having a. head 12`shown yto comprise nutsscrewed 'ponto the rod. This rod 11 passes throughthe sleeve nut and is pivoted tothe lever end to' one side of its Afulcrum '7 as at 13. 14 is a'spring interposed between "the head 12 of the rodll, anda 'shoulder 15, provided" on the sleeve. nut 8.

fandf19, vand it'is between these fastenings 18 and 19, that a hand bar20 may be inserted.

The plates 17 are shownas providin p a toe 21 adapted to seat on the base of the racket as shown in Fig. 2. y

Assuming that the parts are in normal position, the spring 14 operatesl to put proper tension on the brake band 1 forcausing it to cooperate with the face' of the drumy 22, andthe degree of tension of the spring v .14 may be adjusted either by shifting'the sleeve nut in respect to the block 9, or by shifting the nuts 12. Fory the sake of further description it will be assumed that the anism 2ksuiiiciently to produce tension on the loutgoing line and that it is desired to play out more line which would have to be done' brake band is set by the automatic mechagainst the tension of the brake which while 4appropriate for its purpose in connection with powery driven machinery' might bey rather excessive to overcome by hand. yUn-V der these circumstancesr the bar 20 is inserted in the socketof the lower 'end 6 and turned in counter-clockwise direction in.

Fig. 2. rThe result of this is that the'pivot pin 13 is turned in the same direction about theffulcruln 7 releasing the tension on' the' spring l14 and so releasing they brake band andr then the line can be readily played out and the drum overhauled. Thereupon' the hand bar can be turned counter-clockwise, restoring the tension on the brake band and ermitting the toe 21 to seat on the base of the bracket 5.

By way` of further description it may be said that the head 11 of the bar 1l is normally drawn by the spring 14 up against Vthe end (righthand end in Fig. 3) of the sleeve nut 8, thus fixing the length of the brake band and by screwing the sleeve nut 8 into or out of the block 9, the brake band may be lengthened 0r shortened. "When the lever end 6 is turned counter-clockwise the tension on the spring 14 is increased and the end l1 of the rod 11 isV pulled away from its stop, i. e. the end of the sleeve nut 8, and it may be remarked that a little space is shown between these parts on the drawing to illustrate this although in practice in the position shown the adjacent ends of 8 and l1 would be in contact.

It will be obvious to those skilled in the art to which the invention relates that modifications may be made in details ot construction and arrangement and in matters o'l mere Vorm without departing from the spirit of the inventfon which is nel'l limited to such matters or otherwise than the prior art and the appended claims may require.

I claim:

p l. A release for the automatic brakes o' winding drums comprising a split brake band automatically eiieetive in one direction and having interposed between its ends a pair oi brackets oi which one is connected te each end of the band, a lever end pivotally ulcrumed in one of said brackets and provided with a socket, a sleeve nut pivoted to the other bracket, a headed red passing through the nut and pivotedto. the lever end o one side of its i'ulcrum, and a' spring interposed between the head of the rod and the nut.

2. A release for the automatic brakes of winding drums comprising a split brake band automatically eil'ective in one direction and having interposed between its ends a pair of brackets of which one is connected to each end of the band, a. lever end pivotally fulcrumed vin one et said brackets and provided with a socket, a block pivoted in the other bracket, a lsleeve nut kmounted in the block, a headed rod passing freely throughthe sleeve nut and pivoted to the lever end to one side of its tulcrum, and a spring interposed between the head o'l' the rod and the sleeve nut.

3. A release for automatic brake bands of winding machines comprising a split brake band automatically etl'ective in one direction, a. lever end pivotally fulcrumed to one end of the band, a rod pivoted to the other end ei" the band and to the lever end at one side et its itulcrum, and a spring and stop` carried by the last named end or' the band and arranged for cooperation with the rod.

ROBERT H. BEAUMONT. 

